Subject: Re: [PATCH net-next] af_unix: fix a fatal race with bit fields

From: Alan Modra <[email-masked]>
Date: Wed, 1 May 2013 13:24:25 +0930

On Tue, Apr 30, 2013 at 07:24:20PM -0700, Eric Dumazet wrote:
> 	li 11,1
> 	ld 0,0(9)
> 	rldimi 0,11,31,32
> 	std 0,0(9)
> 	blr
> 	.ident	"GCC: (GNU) 4.6.3"
> 
> You can see "ld 0,0(9)" is used : its a 64 bit load.

Yup.  This is not a powerpc64 specific problem.  See
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52080
Fixed in 4.8.0 and 4.7.3.

-- 
Alan Modra
Australia Development Lab, IBM